Diisopropylethylamine → (S)-1-{5'-[(1-Benzo[1,3]dioxol-5-yl-cyclopropanecarbonyl)-amino]-2'-methyl-biphenyl-4-sulfonyl}-pyrrolidine-2-carboxylic acid

HRID 39182Notizen

Reaktionsgleichung

Reaktionsgleichung von HRID 39182
[NH:1]1[CH2:8][CH2:7][CH2:6][C@H:2]1[C:3]([OH:5])=[O:4].C/C(/O[Si](C)(C)C)=N\[Si](C)(C)C.[O:21]1[C:25]2[CH:26]=[CH:27][C:28]([C:30]3([C:33]([NH:35][C:36]4[CH:37]=[CH:38][C:39]([CH3:52])=[C:40]([C:42]5[CH:47]=[CH:46][C:45]([S:48](Cl)(=[O:50])=[O:49])=[CH:44][CH:43]=5)[CH:41]=4)=[O:34])[CH2:32][CH2:31]3)=[CH:29][C:24]=2[O:23][CH2:22]1.CCN(C(C)C)C(C)C>O1CCOCC1>[O:21]1[C:25]2[CH:26]=[CH:27][C:28]([C:30]3([C:33]([NH:35][C:36]4[CH:37]=[CH:38][C:39]([CH3:52])=[C:40]([C:42]5[CH:47]=[CH:46][C:45]([S:48]([N:1]6[CH2:8][CH2:7][CH2:6][C@H:2]6[C:3]([OH:5])=[O:4])(=[O:49])=[O:50])=[CH:44][CH:43]=5)[CH:41]=4)=[O:34])[CH2:32][CH2:31]3)=[CH:29][C:24]=2[O:23][CH2:22]1

Komponenten

6

Edukt 4

HCID 81531DiisopropylethylamineHCID 145742L-ProlineHCID 6913588N,O-bis(trimethylsilyl)acetamideHCID 59205984HCID 59205984, Verbindung

Produkt 1

HCID 59206025(S)-1-{5'-[(1-Benzo[1,3]dioxol-5-yl-cyclopropanecarbonyl)-amino]-2'-methyl-biphenyl-4-sulfonyl}-pyrrolidine-2-carboxylic acid

Reagenzien, Katalysatoren, Lösungsmittel 1

HCID 312751,4-DioxaneLösungsmittel

Versuchsvorschrift

L-Proline (57 mg, 0.50 mmol) was treated with N,O-bis(trimethylsilyl)acetamide (250 μL, 1.0 mmol) in 1 mL dioxane overnight at 50° C. To this mixture was added 5′-(1-(benzo[d][1,3]dioxol-5-yl)cyclopropanecarboxamido)-2′-methylbiphenyl-4-sulfonyl chloride (˜35 μmol, 400 μl solution in chloroform) followed by DIEA (100 μl). The reaction mixture was kept at room temperature for 1 h, evaporated, and diluted with DMSO (400 μl). The resulting solution was subjected to preparative HPLC purification. Fractions containing the desired material were combined and concentrated in vacuum centrifuge at 40° C. to provide the trifluoroacetic salt of (S)-1-{5′-[(1-Benzo[1,3]dioxol-5-yl-cyclopropanecarbonyl)-amino]-2′-methyl-biphenyl-4-sulfonyl}-pyrrolidine-2-carboxylic acid. ESI-MS m/z calc. 548.1, found 549.1 (M+1), retention time 3.40 min; 1H NMR (250 MHz, DMSO-d6) δ 1.04 (m, 2H), δ 1.38 (m, 2H), δ 1.60 (m, 1H), δ 1.80-1.97 (m, 3H) δ 2.16 (s, 3H), δ 3.21 (m, 1H), 3.39 (m, 1H), 4.15 (dd, 1H, J=4.1 Hz, J=7.8 Hz), δ 6.01 (s, 2H), δ 6.89 (s, 2H), δ 6.98 (s, 1H), δ 7.21 (d, 1H, J=8.3 Hz), δ 7.45 (d, 1H, J=2 Hz), δ 7.52 (dd, 1H, J=2 Hz, J=8.3 Hz), δ 7.55 (d, 2H, J=8.3 Hz), δ 7.88 (d, 2H, J=8.3 Hz), δ 8.80 (s, 1H).

Aufarbeitung

  1. customevaporated
  2. additiondiluted with DMSO (400 μl)
  3. customThe resulting solution was subjected to preparative HPLC purification
  4. additionFractions containing the desired material
  5. concentrationconcentrated in vacuum centrifuge at 40° C.

Quellen und Nachweise

ORD-Eintrag
ord-ed4a4b7466ca4d308afc9f563d4124d3
Quelldatensatz
uspto-grants-2013_09
Patentnummer
US08524767B2

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